Climate Insights for Invercargill

The climate in Invercargill is temperate. The average annual temperature is 10°C and approximately 1251mm of precipitation falls per year. Invercargill receives a notable amount of rainfall throughout the year, including during its driest month. Invercargill is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are July, June, August, when temperatures can drop to 3°C. Light snow can occur between July and September.

Invercargill sees moderate temperature variation throughout the year, ranging from 3°C to 19°C. January is the warmest month, though highs remain moderate at 19°C with a mean of 15°C. July is the coolest month, with minimum temperatures around 3°C and an average of 5°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between April and May, with a 3°C shift in average temperatures.

Invercargill is a fairly wet location, receiving approximately 1251mm of precipitation annually, which averages out to around 104mm per month. The wettest month is October, averaging 143mm of rainfall. January and February also tend to see above-average precipitation. The driest month is June, with just 60mm. That's 82mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Light snowfall can occur between July and September, totalling around 6cm annually. July is the snowiest month with approximately 3cm.

Invercargill is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently winter in Invercargill, which began on June 21, 2026. Invercargill is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 19°C, while the coldest stretch bottoms out in July near 3°C. Spring is next, beginning on September 23, 2026 — 91 days from now.

The table below shows monthly climate averages for Invercargill based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.